I had the same hallucination with a pale skinned woman dressed in a black dress with black eyes! It started when I was 5 or 6 and continued until middle school. She use to come from my bathroom and stand next to my bed and watch me for what seemed like hours. Then she would go back into my bathroom and sink into my floor or go into the mirror. I would go for days without sleep as a kid because of her. I would try to sleep during the day as much as could. Thank God I stopped seeing her when I got older. Now I am very manic and I am seeing different hallucinations again and I strongly believe right now that people are out to get me. It is really weird that we had the same hallucination as a kid...